(η-Isopropyl N-phenyl-carbamate)(η-penta-methyl-cyclo-penta-dien-yl)ruthenium(II) tetra-phenyl-borate acetone monosolvate.

The title complex, [Ru(C(10)H(15))(C(10)H(13)NO(2))](C(24)H(20)B)·C(3)H(6)O, is related to the analogous O-methyl complex. The average Ru-C distance to the penta-methyl-cyclo-penta-dienyl (Cp*) group is 2.19†(3)†à , and 2.21†(1)†à to the ortho, meta and para C atoms of the arene ring. The Ru-C(ipso) bond length of 2.272†(3)†à is significantly longer, reflecting movement of the Ru atom away from the C atoms with electronegative substituents attached. The amide H atom in the cation forms an inter-molecular N-H⋯O hydrogen bond with the carbonyl O atom of the acetone solvent mol-ecule. A C-H⋯O inter-action also occurs.